| 摘要 |
The present invention pertains to a surface treatment agent or a powder treatment agent that contains a co-modified organopolysiloxane having a long-chain alkyl group and a polyoxyalkylene group in each molecule, is indicated by general formula: R 1 a R 2 b Q c SiO (4-a-b-c)/2 , and has a number average molecular weight of less than 4500. |
